Mixing device for thermoplastic elastomer production
By introducing a material agitation structure into the mixing device and utilizing the combination of extended components and electromagnets, the problem of material sedimentation is solved, achieving a more efficient mixing effect and improving the uniformity and thoroughness of the material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JINCHUAN POLYMER MATERIALS CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-15
AI Technical Summary
When existing mixing devices use motor-driven stirring blades, materials of different particle sizes tend to separate and settle, affecting the mixing quality.
A mixing device with a material tumbling structure was designed. By setting an extension component and a tumbling element at the bottom of the stirring shaft, and using an electromagnet, the material can be tumbled up and down and stirred in reverse. The cooperation between the tumbling element and the stirring shaft can improve the fullness of material mixing.
It effectively prevents material sedimentation, improves the uniformity and thoroughness of mixing materials of different particle sizes, and enhances the quality of the mixture.
Smart Images
Figure CN224240031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mixing device, and more particularly to a mixing apparatus for the production of thermoplastic elastomers. Background Technology
[0002] Thermoplastic elastomers (TPEs) are polymeric materials that possess the elasticity of rubber while also being able to be rapidly and repeatedly processed and molded like thermoplastic plastics. They exhibit high elasticity at room temperature and can be plasticized and molded at high temperatures, combining the physical and mechanical properties of rubber with the processing fluidity of plastics. Their molecular structure typically consists of plastic segments (hard segments) and rubber segments (soft segments). The hard segments provide physical cross-linking points and rigidity, while the soft segments impart elasticity. The production of thermoplastic elastomers begins with raw material preparation, selecting suitable thermoplastic elastomer resins (such as styrene-based, polyolefin-based, and polyurethane-based resins) and various additives, including fillers (such as calcium carbonate and talc), plasticizers, and stabilizers. Next, the prepared raw materials are added to a mixing device, where stirring and shearing actions ensure uniform mixing of the components and thorough dispersion of the additives within the resin, forming a homogeneous mixture.
[0003] Currently, mixing devices in practical applications use a motor as the drive mechanism to rotate the stirring blades in the mixing tank. The mixing process involves agitating the resin and various additives. However, this type of mixing device can cause stratification of materials with different particle sizes, with heavier materials settling at the bottom of the mixing tank, affecting the mixing quality. Therefore, it is necessary to design a mixing device with a material agitation structure to facilitate the mixing of materials with different particle sizes. Utility Model Content
[0004] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a mixing device for the production of thermoplastic elastomers, which realizes the purpose of the mixing device having a material turning structure and being able to mix materials of different particle sizes.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A mixing device for producing thermoplastic elastomers includes a mixing tank, a drive motor mounted on the top of the mixing tank, a stirring shaft extending into the mixing tank from the drive end of the drive motor, an extension assembly at the bottom of the stirring shaft, a flipping component at the telescopic end of the extension assembly, a magnetic suction plate on the lower side of the flipping component, and an electromagnet cooperating with the magnetic suction plate at the lower end of the inner wall of the mixing tank for upward mixing of materials at the bottom of the mixing device.
[0007] Preferably, the turning member has a blade ring in the middle that is connected to the extension assembly, and the blade ring has multiple horizontally distributed blades inside for cutting the bottom material.
[0008] Preferably, the circumference of the blade ring is provided with multiple downward-turning blades, and the upper part of the stirring shaft is provided with multiple upward-turning blades. Both the downward-turning blades and the upward-turning blades are inclined and the multiple downward-turning blades and the multiple upward-turning blades are symmetrically distributed for turning the material.
[0009] Preferably, the extension assembly includes a slidably connected sleeve and a movable rod. A slider that passes through the sleeve is fixed on the movable rod. A spring connected to the movable rod is provided in the sleeve. Both ends of the spring are provided with elastic blocks for the up-and-down movement of materials.
[0010] Preferably, the magnetic plate is made of magnetic material, and the electromagnet is externally connected to a power source.
[0011] Preferably, the middle part of the stirring shaft is provided with a plurality of first slices and second slices. The first slices and second slices have the same structure and are arranged in opposite directions for cutting materials.
[0012] Preferably, the mixing tank has a rectangular cross-section, and multiple side-tilting components are arranged around the interior of the mixing tank.
[0013] Preferably, the side-tilting assembly includes a connecting shaft fixed to the mixing tank, a plurality of bearings are provided on the outside of the connecting shaft, and a plurality of dispersing blades are provided on the outside of the bearings.
[0014] Compared with existing technologies, the mixing device provided by this utility model has a material turning structure, which can mix materials of different particle sizes. Specifically, by using the extension component at the lower end of the stirring shaft in conjunction with the electromagnet, the turning component can be adjusted in height using the sleeve and movable rod in the extension component, so as to stir the material in the mixing tank at different heights. It can turn the material at the bottom of the mixing tank upward, so that the material can be mixed with the thermoplastic, improve the mixing fullness of the mixing device, and improve the sedimentation phenomenon of heavier materials at the bottom of the tank. By setting the upper and lower turning blades of the turning component in opposite directions to the upper turning shaft on the outside of the stirring shaft, the material in the mixing tank can be stirred in reverse, and the material is further stirred by the counter-current.
[0015] Furthermore, by setting the blade ring in the middle of the flipper, the material on the lower side can be rotated upwards and cut by multiple blades to reduce the volume of the material. The first and second blades in the middle of the stirring shaft can further cut the material to reduce its volume, which facilitates the mixing of materials of different specifications, allowing them to be mixed more fully with the thermoplastic elastomer and increasing the uniformity of the material.
[0016] It should be understood that the general descriptions and details herein are exemplary and illustrative only and are not intended to limit this disclosure.
[0017] This application provides an overview of various implementations or exemplary embodiments of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description
[0018] Figure 1 A schematic diagram of the overall structure of the mixing device for producing thermoplastic elastomers according to this utility model;
[0019] Figure 2 A partial structural cross-sectional view of the mixing device for producing thermoplastic elastomers according to this utility model;
[0020] Figure 3 A partial structural diagram of the mixing device for producing thermoplastic elastomers according to this utility model, showing the stirring shaft and the first and second slices.
[0021] Figure 4 This is a partial structural diagram of the side-tilting component in the mixing device for producing thermoplastic elastomers according to this utility model.
[0022] Figure 5 Exploded view of the structure of the turning component in the mixing device for producing thermoplastic elastomers according to this utility model;
[0023] Figure 6 This is a partial structural diagram of the extension component in the mixing device for producing thermoplastic elastomers according to this utility model.
[0024] Key reference numerals:
[0025] 1. Mixing tank; 2. Drive motor; 3. Mixing shaft; 4. Extension assembly; 5. Sleeve; 6. Movable rod; 7. Slider; 8. Spring; 9. Flipping component; 10. Blade ring; 11. Magnetic plate; 12. Downward-flipping blade; 13. Electromagnet; 14. First slice; 15. Second slice; 16. Upward-flipping blade; 17. Side-flipping assembly; 18. Connecting shaft; 19. Bearing; 20. Dispersing blade. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. Note: The described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0027] As attached Figure 1 To be continued Figure 6As shown, this utility model provides a mixing device for thermoplastic elastomer production. Currently, when processing thermoplastic elastomer materials, a mixing tank 1 is used to hold the materials. A drive motor 2 installed at the top of the mixing tank 1 serves as the mixing drive device. A stirring shaft 3 extending into the mixing tank 1 is installed at the drive end of the drive motor 2. By penetrating the mixing tank 1, the materials in the tank can be mixed. To prevent large particles from settling during mixing, an extension component 4 is installed at the bottom of the stirring shaft 3. A tilting component 9 is installed at the telescopic end of the extension component 4. The height of the tilting component can be adjusted by using component 4. Then, a magnetic suction plate 11 is set on the lower side of the tilting component 9. An electromagnet 13 that works with the magnetic suction plate 11 is set on the lower end of the inner wall of the mixing tank 1. When the electromagnet is energized, it has magnetism and can be attracted to the magnetic suction plate 11, which drives the tilting component to move downward. By energizing and de-energizing the electromagnet, the tilting component can be driven to reciprocate up and down to mix at different heights and mix the materials from top to bottom. The stirring shaft 3 drives the extension component and the tilting component to rotate synchronously, which can turn the material at the bottom of the mixing device up and mix it with the material in the middle of the mixing tank 1, thereby improving the fullness of material mixing.
[0028] In order to mix large particles into thermoplastic elastomers more quickly, such as... Figure 5 and 6 As shown, in some embodiments, a blade ring 10 connected to the extension assembly 4 is provided in the middle of the agitator 9. Multiple horizontally distributed blades are provided inside the blade ring 10. When the agitator 9 rotates, the material at the bottom of the mixing tank 1 flows upward with the rotation of the agitator 9 and passes through the middle of the blade ring 10. Through the arrangement of multiple blades inside the blade ring, the material passing through can be cut, reducing the material volume and facilitating the mixing of large particles and thermoplastic elastomers.
[0029] Furthermore, such as Figure 2 As shown, in some embodiments, multiple downward-turning blades 12 can be arranged around the periphery of the blade ring 10, and multiple upward-turning blades 16 can be arranged on the upper part of the stirring shaft 3. Both the downward-turning blades 12 and the upward-turning blades 16 are inclined relative to the stirring shaft 3. Then, the multiple downward-turning blades 12 and the multiple upward-turning blades 16 are symmetrically distributed, so that when the material rotates with the upward-turning blades and the downward-turning blades, they all rotate around the stirring shaft 3 as the axis, and the material in the mixing box is turned over in different vertical directions to achieve the counter-mixing of the material and improve the fullness of the mixing of the material.
[0030] Secondly, it is worth noting that, for example Figure 2 and 6As shown, in some embodiments, the extension assembly 4 includes a slidably connected sleeve 5 and a movable rod 6. The sleeve 5 can be fixed on the stirring shaft, and then a slider 7 that passes through the sleeve 5 is fixed on the movable rod 6. A groove is opened on the outside of the sleeve, and the slider passes through the groove to movably connect the movable rod and the sleeve 5, so that the movable rod 6 can slide up and down. Next, a spring 8 connected to the movable rod 6 is set in the sleeve 5. Both ends of the spring 8 are provided with elastic blocks for buffer protection. By utilizing the elastic characteristics of the spring, the movable rod and the sleeve 5 can be elastically connected, providing favorable conditions for the application of an electromagnet to the turning component to turn the material up and down.
[0031] Furthermore, in some embodiments, the magnetic plate 11 can use magnetic materials, such as iron, iron alloys, cobalt and cobalt alloys, etc. The magnet 13 is externally connected to a power source, utilizing the characteristic of existing electromagnets to generate magnetism when energized. The flipping component uses an extension assembly to move its lower magnetic plate towards the electromagnet, reducing the height of the flipping component. Then, by de-energizing the electromagnet and using the spring in the extension assembly, the flipping component can be reset, realizing the up-and-down flipping of the material, providing convenience for the lifting and stirring of the mixing device.
[0032] To increase the uniformity of thermoplastic elastomer materials, the material can be cut, such as... Figure 3 As shown, in some embodiments, multiple first slices 14 and second slices 15 can be arranged in the middle of the stirring shaft 3. The first slices 14 and second slices 15 are both arranged in a ring on the stirring shaft 3, and the first slices 14 and second slices 15 have the same structure and can use a single-sided arc-shaped plate structure. Then the first slices 14 and second slices 15 are arranged in opposite directions. The opposite state of the two sets of slices can cut the material in the middle of the mixing box, which is convenient for cutting with multiple blades.
[0033] Furthermore, the fluidity of the material can be utilized for further cutting, such as... Figure 2 As shown, in some embodiments, the mixing tank 1 can use a rectangular cross-section structure, such as a cuboid or a cube, and then multiple side-tilting components 17 are arranged around the inside of the mixing tank 1. By flipping the material up and down, it can collide with the side-tilting components and cut the material again.
[0034] like Figure 4 As shown, the side-tilting assembly 17 can use a connecting shaft 18 fixed on the mixing tank 1, and then multiple bearings 19 are set on the outside of the connecting shaft 18, and multiple dispersing blades 20 are set on the outside of the bearings 19. The multiple dispersing blades 20 can use the bearings 19 to rotate outside the connecting shaft 18, and cut the material longitudinally as the material flows, reducing the material volume and improving the uniformity of the thermoplastic elastomer production.
[0035] Of course, the above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A mixing device for producing thermoplastic elastomers, comprising a mixing tank (1), a drive motor (2) disposed on the top of the mixing tank (1), and a stirring shaft (3) extending into the mixing tank (1) from the drive end of the drive motor (2), characterized in that: An extension assembly (4) is provided at the bottom of the stirring shaft (3). A flipping component (9) is provided at the telescopic end of the extension assembly (4). A magnetic suction plate (11) is provided on the lower side of the flipping component (9). An electromagnet (13) is provided at the lower end of the inner wall of the mixing box (1) to cooperate with the magnetic suction plate (11) for mixing the material at the bottom of the mixing device.
2. The mixing apparatus for producing thermoplastic elastomers as described in claim 1, characterized in that, The turning member (9) is provided with a blade ring (10) connected to the extension component (4) in the middle. The blade ring (10) is provided with a plurality of horizontally distributed blades for cutting the bottom material.
3. The mixing apparatus for producing thermoplastic elastomers as described in claim 2, characterized in that, The blade ring (10) is provided with multiple downward-turning blades (12) on its periphery, and the stirring shaft (3) is provided with multiple upward-turning blades (16) on its upper part. Both the downward-turning blades (12) and the upward-turning blades (16) are inclined. The multiple downward-turning blades (12) and the multiple upward-turning blades (16) are symmetrically distributed for turning over materials.
4. The mixing apparatus for producing thermoplastic elastomers as described in claim 1, characterized in that, The extension assembly (4) includes a sleeve (5) and a movable rod (6) that are slidably connected. A slider (7) that passes through the sleeve (5) is fixed on the movable rod (6). A spring (8) connected to the movable rod (6) is provided in the sleeve (5). Both ends of the spring (8) are provided with elastic blocks for the material to be flipped up and down.
5. The mixing apparatus for producing thermoplastic elastomers as described in claim 1, characterized in that, The magnetic plate (11) is made of magnetic material, and the electromagnet (13) is connected to an external power source.
6. The mixing apparatus for producing thermoplastic elastomers as described in claim 1, characterized in that, The stirring shaft (3) has a plurality of first slices (14) and second slices (15) in the middle. The first slices (14) and second slices (15) have the same structure and are arranged in opposite directions for cutting materials.
7. The mixing apparatus for producing thermoplastic elastomers as described in claim 1, characterized in that, The mixing tank (1) has a rectangular cross-section, and multiple side-tilting components (17) are arranged around the inside of the mixing tank (1).
8. The mixing apparatus for producing thermoplastic elastomers as described in claim 7, characterized in that, The side-tilting assembly (17) includes a connecting shaft (18) fixed on the mixing tank (1), and a plurality of bearings (19) are provided on the outside of the connecting shaft (18), and a plurality of dispersing blades (20) are provided on the outside of the bearings (19).